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# Test: Molecular Diffusion In Gas

## 5 Questions MCQ Test Mass Transfer | Test: Molecular Diffusion In Gas

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This mock test of Test: Molecular Diffusion In Gas for Chemical Engineering helps you for every Chemical Engineering entrance exam. This contains 5 Multiple Choice Questions for Chemical Engineering Test: Molecular Diffusion In Gas (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Molecular Diffusion In Gas quiz give you a good mix of easy questions and tough questions. Chemical Engineering students definitely take this Test: Molecular Diffusion In Gas exercise for a better result in the exam. You can find other Test: Molecular Diffusion In Gas extra questions, long questions & short questions for Chemical Engineering on EduRev as well by searching above.
QUESTION: 1

### __________ energy helps for molecular diffusion.

Solution:

Explanation: Thermal energy is heat. Heat can cause diffusion among molecules.

QUESTION: 2

### For two particles at steady state collision of A and B, J flux of A is 2 mol/sq.m sec find the J flux of B.

Solution:

Explanation: At steady state collision, J flux of A = – J flux of B = -2.

QUESTION: 3

### Estimate the mole fraction if concentration of A is 2 mol/cu.m and the total concentration is 5 mol/cu.m.

Solution:

Explanation: xA = cA/C = 2/5 = 0.4.

QUESTION: 4

Find the partial pressure of A if the total pressure is 2 atm; Concentration of A is 2 mol/cu.m and total concentration is 5 mol/cu.m.

Solution:

Explanation: yA= 2/5 = 0.4
pA = 0.4 x 2 = 0.8 atm

QUESTION: 5

From the reaction, Methane –> Carbon + 2(Hydrogen molecule) find the ratio of N Flux of A to the Total N flux( A+B); Given N Flux of B =-2 N flux of A.

Solution:

Explanation: N flux of A/ Total flux = N flux of A/ N flux of A – 2 N flux of A = -1.